Pre heat oven to 350˚.
In a large bowl, mix together graham cracker crumbs, flour, baking soda and salt.
In a a separate bowl, beat butter and both sugars together until creamy and smooth, add in vanilla and egg and mix until combined.
Add sugar mixture into the the dry ingredients and mix until combined.
Roll out dough into about a 13" circle. Place on pizza stone or baking sheet and bake for about 10-15 minutes until the middle of the middle is set.
Remove from oven and cover with marshmallows, leaving about a 1 inch gap from the edge so they don't melt over. Top with chocolate chips and place bake in the oven for about 4-5 minutes, until marshmallows become golden.
Top with some chocolate sauce and graham cracker crumbs, slice and serve.